Safety Harness Accessories are thoes stuff which are widely used with Safety Harness.Such like fall-protection lanyard,Carabiners,elastic ropes,buckles,etc.
Lanyard is quite popular equipment,it has various types by different End Fittings.
Carabiners is a connection link which is usually made by steel or high strength aliminum.
They are not the main parts of safety harness,however a safety harness only has more functions with its suitable accessories.